[BioC] Error message in RMA

[Lizhe Xu]

I got the following error when using RMA command:

> data<-ReadAffy()
> data
AffyBatch object
size of arrays=712x712 features (23767 kb)
cdf=HG-U133B (22645 affyids)
number of samples=6
number of genes=22645
annotation=hgu133b
Warning message: 
package hgu133bcdf was built under R version 2.0.0 

> set<-rma(data)
Background correcting
Normalizing
Calculating Expression
Error in rma(data) : dimnames applied to non-array

Please tell me what the problem is? (My guess is that the hgu133bcdf was built under R 2.0 but mine is 1.91.) 
When I retry the same command again, and it worked the 2nd time. I don't know if I can ignore the error message and trust the normalized data.

Thanks.


L